Service migration depends on such factors as operating systems, source platforms, and general scope of migration. This topic describes the systems and migration scenarios supported by the Alibaba Cloud migration service.

Supported operating systems

Previously, a standard server system migration typically experienced the following issues:

  • Complicated configurations: Advanced IT knowledge is required for virtualized driver configurations, system boot configurations, and disk configurations.
  • High migration costs: An equivalent amount of local storage space needs to be used for the migration process, which may therefore take a long time and can be disrupted easily.
  • Different migration methods: Because of different OSs involved, there is no unified method to migrate Windows or Linux operating systems.

To resolve the preceding issues, the Alibaba Cloud migration service provides:

A one-click automatic system configuration function that includes resumable upload/download and compressed transfer features. Additionally, the service does not occupy local storage, and supports the following Windows and Linux operating systems:
  • Windows Server 2003/2008/2012/2016
  • CentOS 5/6/7
  • Ubuntu 10/12/14/16/17/18
  • Debian 7/8/9
  • Red Hat 5/6/7
  • SUSE 11.4/12.1/12.2
  • Amazon Linux 2014 or later
  • Oracle Linux 5/6/7

Supported server platforms

Previously, a standard server platform migration typically encountered the following compatibility issues:

  • Incompatible underlying server environments between physical machines and virtual machines.
  • Incompatible file systems, including different file formats, partition types, and disk types.
  • Incompatible system services, for example, Cloud-Init and SELINUX.

To resolve the preceding issues, the Alibaba Cloud migration service provides:

Support for P2V/V2V migration (physical machine/virtual machine migration) without a dependency on the underlying environment. The service is also compatible with multiple file formats, partition types, and disk types, and can automatically process specified system services. Currently, the following server platforms are supported:
  • On-premises IDCs
  • Local virtual machines (VMware/Vitrual Box/XEN/KVM)
  • Alibaba Cloud (across accounts or regions)
  • AWS EC2
  • Azure VM
  • Google VM
  • Huawei ECS
  • Tencent Cloud (CVM)
  • Other mainstream cloud vendors (for example, UCloud, e-Surfing Cloud, and QingCloud)

Supported scopes of migration

Previously, service migrations that were performed manually typically experienced the following issues :

  • Extensive operation and deployment preparations
  • Excessive consumption of resources
  • Lengthy migration process
To resolve the preceding issues, the Alibaba Cloud migration service provides:
  • Automatic on-demand migration resource responses, using the elastic computing resources of Alibaba cloud, which enable flexible service expansion.
  • Concurrent processing of massive migration tasks
  • Easy batch migration. You can call the easy-to-distribute migration service tool through the CLI by running automated scripts that you create.

The scope of migration that the Alibaba Cloud migration service supports ranges from tens of servers (small-scale migration) to thousands of servers (large-scale migration).